Meta tags have never been a guaranteed way to gain a top ranking on crawler-based search engines. Today, the most valuable feature they offer the web site owner is the ability to control to some degree how their web pages are described by some search engines. They also offer the ability to prevent pages from being indexed at all.
Meta description tags consist the knowledge on seo and google recommendations on writing meta description tags, length, limits, guidelines, suggestions, character limits, optimization strategies, components and etc.
Enter your blog description between the one quote marks beneath description. You can use a max. of a hundred and fifty characters.